On 06.05.24 19:59, PG Doc comments form wrote:
> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/16/collation.html
> Description:
>
> I created a collation specifying the ks-level3 setting and with
> deterministic set to false. But when I compare "a_b" to "a-b" with this
> collation I get false. According to the table 24.1 it should yield true.
> Only after adding ka-shifted this comparison becomes true. The interactions
> of the different options are not very clear.
I think table 24.1 is somewhat incorrect in the sense that punctuation
is only level 4 if you use ka-shifted, otherwise it's level 1. This
should perhaps be clarified.